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  <pre class="prettyprint lang-js"><span id='Ext-chart-axis-Category'>/**
</span> * @class Ext.chart.axis.Category
 *
 * A type of axis that displays items in categories. This axis is generally used to
 * display categorical information like names of items, month names, quarters, etc.
 * but no quantitative values. For that other type of information `Number`
 * axis are more suitable.
 *
 * As with other axis you can set the position of the axis and its title. For example:
 *
 *     @example
 *     var store = Ext.create('Ext.data.JsonStore', {
 *         fields: ['name', 'data1', 'data2', 'data3', 'data4', 'data5'],
 *         data: [
 *             {'name':'metric one', 'data1':10, 'data2':12, 'data3':14, 'data4':8, 'data5':13},
 *             {'name':'metric two', 'data1':7, 'data2':8, 'data3':16, 'data4':10, 'data5':3},
 *             {'name':'metric three', 'data1':5, 'data2':2, 'data3':14, 'data4':12, 'data5':7},
 *             {'name':'metric four', 'data1':2, 'data2':14, 'data3':6, 'data4':1, 'data5':23},
 *             {'name':'metric five', 'data1':27, 'data2':38, 'data3':36, 'data4':13, 'data5':33}
 *         ]
 *     });
 *
 *     Ext.create('Ext.chart.Chart', {
 *         renderTo: Ext.getBody(),
 *         width: 500,
 *         height: 300,
 *         store: store,
 *         axes: [{
 *             type: 'Numeric',
 *             position: 'left',
 *             fields: ['data1', 'data2', 'data3', 'data4', 'data5'],
 *             title: 'Sample Values',
 *             grid: {
 *                 odd: {
 *                     opacity: 1,
 *                     fill: '#ddd',
 *                     stroke: '#bbb',
 *                     'stroke-width': 1
 *                 }
 *             },
 *             minimum: 0,
 *             adjustMinimumByMajorUnit: 0
 *         }, {
 *             type: 'Category',
 *             position: 'bottom',
 *             fields: ['name'],
 *             title: 'Sample Metrics',
 *             grid: true,
 *             label: {
 *                 rotate: {
 *                     degrees: 315
 *                 }
 *             }
 *         }],
 *         series: [{
 *             type: 'area',
 *             highlight: false,
 *             axis: 'left',
 *             xField: 'name',
 *             yField: ['data1', 'data2', 'data3', 'data4', 'data5'],
 *             style: {
 *                 opacity: 0.93
 *             }
 *         }]
 *     });
 *
 * In this example with set the category axis to the bottom of the surface, bound the axis to
 * the `name` property and set as title _Month of the Year_.
 */
Ext.define('Ext.chart.axis.Category', {

    /* Begin Definitions */

    extend: 'Ext.chart.axis.Axis',

    alternateClassName: 'Ext.chart.CategoryAxis',

    alias: 'axis.category',

    /* End Definitions */

<span id='Ext-chart-axis-Category-property-categoryNames'>    /**
</span>     * A list of category names to display along this axis.
     * @property {String} categoryNames
     */
    categoryNames: null,

<span id='Ext-chart-axis-Category-property-calculateCategoryCount'>    /**
</span>     * Indicates whether or not to calculate the number of categories (ticks and
     * labels) when there is not enough room to display all labels on the axis.
     * If set to true, the axis will determine the number of categories to plot.
     * If not, all categories will be plotted.
     *
     * @property calculateCategoryCount
     * @type Boolean
     */
    calculateCategoryCount: false,

    // @private creates an array of labels to be used when rendering.
    setLabels: function() {
        var store = this.chart.getChartStore(),
            data = store.data.items,
            d, dLen, record,
            fields = this.fields,
            ln = fields.length,
            i;

        this.labels = [];
        for (d = 0, dLen = data.length; d &lt; dLen; d++) {
            record = data[d];
            for (i = 0; i &lt; ln; i++) {
                this.labels.push(record.get(fields[i]));
            }
        }
    },

    // @private calculates labels positions and marker positions for rendering.
    applyData: function() {
        this.callParent();
        this.setLabels();
        var count = this.chart.getChartStore().getCount();
        return {
            from: 0,
            to: count - 1,
            power: 1,
            step: 1,
            steps: count - 1
        };
    }
});
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